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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <style>
        h1 {
            font-size: 50px;
            color: transparent;

            -webkit-text-stroke-color: red;
            -webkit-text-stroke-width: 1px;
        }
    </style>
</head>
<body>

    <h1>你好，欢迎来到红色警戒</h1>
    
</body>
</html>